Another language in another sentence (4)
I believe the answer is:
erse
'another language' is the definition.
'erse' can be an answer for 'language' (historical term for Scottish Gaelic). I am not certain of the 'another' bit.
'in another sentence' is the wordplay.
'in' indicates the answer is hidden within the clue.
'ERSE' is hidden within 'another sentence'.
Can you help me to learn more?
(Other definitions for erse that I've seen before include "Old Gaelic for the seer" , "Old language spoken by strange seer" , "Celtic tongue" , "Possibly the language" , "Old name for Celtic languages" .)